Don’t Ask Him to Sing for His Supper By Le Anne Lindsay, Editor This is the winter of Llewyn Davis’ (Oscar Isaac) discontent. He’s got no money, no coat, no place to live and no one really likes him much. He’s got some charm and sex appeal, he can sing and play guitar, but he’s one of these people who speaks first and thinks later and has little regard for the consequences of his actions, until after his words and/or actions make trouble for him. Still, he’s not nearly as bad as Jean (Carey Mulligan) the self-righteous, singing girlfriend of a friend (Justin Timberlake) tells him he is.   With Inside…